Churn



UNITED STATES PATENT FFICE.

J. B. S\VEETLAND, OF PONTIAC, MICHIGAN.

CHURN.

Specification forming part of Letters Patent No. 44,755, dated October 18, 1864. I

To all whom it may concern:

Be it known that I, J. B. SWEETLAND, of Pontiac, Michigan, have invented certain new and useful Improvements in Ghurns; and I hereby declare that the following is a true and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in the use of certain mechanical devices for operating either one or two churns, as the case may require.

Figure 1 in the annexed drawings is a plan view of my churn. Fig. 2 represents a vertical section of the same. Fig. 3 is a side elevation.

The letter A, Fig. 2, represents the frame of my machine, which consists of the two end pieces, B, connected by the ties o. The upper forks or arms of frame A are bound together by the horizontal braces or ties d c.

H represents a box-churn,with the shaft D passing obliquely through it. The shaft D is as much above the center of churn H at one end as it is below it at the other. By this arrangement it will be seen that when the churn H revolves the two ends will alternately rise and fall and dash the milk violently against its sides, and thus crush the globules containing the butter. At one end of churn I-I, near the outer edge, is placed the valve I. The valve I is so constructed that when at rest it fits sufficiently tight to prevent the escape of the milk, but at every revolution of churn H the valve I is brought in contact with spring at and forced in, so as to admit the air freely into the churn.

F represents a balance wheel, having a slot in one of its arms, into which the wrist Gr is fastened, the opposite end of wrist Gr playing in the forked end of lever K. I

L designates the pivot on which lever K plays with a vertical motion. The shaft D, it will be observed, extends outside of the ties e and d, so as to admit the balance-wheel on one end and the pinion a on the other. The pinion a is geared into the cog-wheel P, the shaft of which extends outward far enough for a crank attachment, and its opposite end receiving the pinion 0, which gears into cog wheel R. The cog-wheel R works on the same shaft with cylinder S, which is placed in a horizontal position between the end pieces, B.

T represents a common cylindrical churn, placed immediately under the lever K, and operated with the usual staff and dasher. The upper end of the dasher is confined to the outside of lever K by a metal plate adjusted to K, with space between the plate and the lever to admit of the staff being moved and adapted to the position of churn T.

V represents the platform to which the legs of frame A are screwed.

My churn is operated either by a crank attached to a shaft of wheel P, or by a cord passing around cylinder S,witha heavy weight attached to it. When the cylinder Sis put in motion by the weight, it gives motion to the cog-wheel R, which being connected with pinion n by intermediate gearing, the balancewheel F is driven around, it being on the same shaft with pinion a. The balance-wheel when revolving imparts a reciprocating vertical motion to lever K, which operates the staff of churn T.

The advantage of my mode of construction is that any churn worked with a vertical motion of the staff can be attached to it, and a twofold operation carried on at the same moment. I also claim as an advantage the irregularmotion of churn T, operating as above stated.

Having thus described my machine, what I claim, and desire to secure by Letters Patent, 1s-- 1. A combination of box H, shaft D, and valve I, constructed and operated substantially as herein set forth.

2. The box H, the pinions a and 0, the cogwheels P and It, the cylinder S, balance wheel F, lever K, and churn T, the whole arranged, constructed, and operated substantially as herein described.

J. B. SWEETLAND.

Witnesses:

JAMES CARHARTT, S. O. BANoROFT. 

